Identifying YZ80 parts help needed

[bruce g]

Hi fellow bike junkies
I have acquired by was of free gratis 3 yz80s
2x J models 90% complete
1x K model with a 22W frame # and no engine
the 2 Js have 5X2 engines and 5X2 frames which i think is correct for the 1982 year
but both of them have loosely fitted barrel and heads
i am having trouble trying to identify which barrel is for the J model
one is correct but i think the other id off a 86 to 92 model
would appreciate any input as i am going stupid looking at pictures on the internet
one seems to have a taller stroke and one has springs to fit exhaust
while the other has 2 x bolts or studs for the exhaust
any help steering me in the right direction to some one who is a yz80 god
would be appreciated
I owned and raced a C model in the 70s but most of my expertise is on xr hondas
thanks
Bruce

[alexbrown64]

Have a look here...
http://www.partzilla.com/parts/search/Yamaha/Motorcycle/1982/YZ80J/CYLINDER+HEAD+CYLINDER+YZ80J/parts.html
There is also a 5X2 cylinder which is NOS and has heaps of pics with it here..
http://www.ebay.com/itm/YAMAHA-NOS-VINTAGE-CYLINDER-YZ80J-1982-5X2-11311-00-/351300539612?hash=item51cb24d4dc&vxp=mtr
Cheers,
Alex..

[bruce g]

thanks Alex
looks like  i have 1x j barrel and head
and 1x k barrel and head
but 2 x j bottom ends and cases
thanks again

[PCMAX]

Im in the process of building 2 good 80J engines for a mate from 3 spare engines I should have basically all the parts for another engine at the end of the process. I should be finished in a couple of weeks, so if you're after any parts let me know.
By the way all of the gearbox bearings are available at CBC bearings for around $60.

Cheers
Peter

[bruce g]

Thanks Peter
Might take you up on that offer
what area are you in melbourne or interstate?
send me a message when your done building your 2 engines and will see what you have left to what i need
theres not much on evilbay at the moment
thanks again
cheers
Bruce
ps i'm in Tullamarine area

[PCMAX]

Hi Bruce,
Sent you a private message, check your inbox.